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Free hub lube

Old 08-26-16, 11:10 AM
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sknhgy 
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Free hub lube

While doing some maintenance my free hub came apart so I wiped it out with WD-40 and a rag.
What do I re-lube it with?
It had some blue stuff in there.
Can I use wheel bearing grease?
Someone told me to lube it sparingly.
Anything else I need to know about?
TIA
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Old 08-26-16, 11:29 AM
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An old stand-by is Phil's Tenacious Oil; however, Dumondtech's Freehub lube is purpose-made for that. I'd recommend that. If you decide that you want to completely over-haul the freehub, then a very light grease may be your best bet on just the bearings.
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Old 08-26-16, 12:39 PM
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It has sealed bearings.
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Old 08-26-16, 12:42 PM
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Right. Sealed bearings can be cleaned and repacked with grease. Pop the side plates off the bearings, clean them out with WD-40, blow them out and repack with grease. A quick fix is load it with Freehub oil.
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Old 08-26-16, 01:30 PM
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If the OP is asking about lubrication for the pawls and ratchet teeth, I have always lubed them lightly with 30 weight non-detergent motor oil.
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Old 08-26-16, 01:33 PM
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summer only? or you ride it in the winter?
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Old 08-26-16, 01:43 PM
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It's for the ratchet and pawls. I ride summer and winter. Below freezing.
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Old 08-26-16, 01:44 PM
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very much thinner in the winter
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Old 08-26-16, 03:56 PM
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So. What should I use?
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Old 08-26-16, 04:01 PM
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Any oil will do the job but don't use grease!

It can gum up the pawls and you will find yourself freewheeling in both directions...
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Old 08-26-16, 04:05 PM
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Originally Posted by richart View Post
If the OP is asking about lubrication for the pawls and ratchet teeth, I have always lubed them lightly with 30 weight non-detergent motor oil.
I've got some synthetic 30w that I mix with mineral spirits to make chain lube. Would it work?
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Old 08-26-16, 04:18 PM
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Originally Posted by sknhgy View Post
I've got some synthetic 30w that I mix with mineral spirits to make chain lube. Would it work?
The 30w will work fine without diluting...
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Old 08-26-16, 04:41 PM
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The trick with pawl lube is to find something that is not too thick but thick enough to not run out of the hub/mechanism. For a long time I just mixed some motor oil with grease until it was just thick enough to not drip easily. Worked great. Most petroleum greases will work with motor oils and some synth will as well but some synth greases can get a little pasty when mixed with petroleum products. The last couple of Shimano Cassette hubs I've cleaned and lubed were done with just Chain-L chain lube and both have been working great for around 2 yrs with temps between 45F-105F.

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Old 08-26-16, 04:42 PM
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I don't think it is a good idea to mix synthetic oil with mineral spirits. You may have a concoction that will gum up the parts and make them stick...you sure don't want that in a free hub. Might work fine on a chain but we are talking two different types of mechanical objects. Don't over oil. One small drop on each pawl is sufficient. It will spread itself onto the ratchet teeth.
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Old 08-26-16, 05:09 PM
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Overhaul the freehub's sealed bearings and re-grease with grease. Shimano Special grease or Motorex 2000 grease would be a good choice if you have it. Otherwise any bearing grease should work fine. Oil the pawl mechanism with a medium-heavy oil. I'd go with Dumondtech Freehub oil as I stated before.

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Old 08-26-16, 09:19 PM
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Originally Posted by rmfnla View Post
Any oil will do the job but don't use grease!

It can gum up the pawls and you will find yourself freewheeling in both directions...

I'd take grease over 3-in-1. Have you seen this happen?

I haven't.
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Old 08-27-16, 01:35 AM
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Blue green bicycle grease or just motor oil. Car bearing grease is too thick. Light oil is too thin.
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Old 08-27-16, 06:37 AM
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Originally Posted by drlogik View Post
Overhaul the freehub's sealed bearings and re-grease with grease. Shimano Special grease or Motorex 2000 grease would be a good choice if you have it. Otherwise any bearing grease should work fine. Oil the pawl mechanism with a medium-heavy oil. I'd go with Dumondtech Freehub oil as I stated before.
I was hoping to find something more common and less expensive. I may never do this again.
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Old 08-27-16, 09:45 AM
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get a wheel with a Common steel driver shimano hub.

shimano drivers can be oiled by submersion..
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Old 08-27-16, 06:38 PM
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Originally Posted by woodcraft View Post
I'd take grease over 3-in-1. Have you seen this happen?

I haven't.
I have, more than once, in both freewheels as well as freehubs; even with thin white grease.

3-in-1 would be the better choice, but you do what you want; I don't have to fix your bike...
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Old 08-28-16, 07:18 AM
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I reassembled it with maybe a teaspoon of synthetic 30w. Bike is back together and ready to ride. Thanks for the help.
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Old 08-29-16, 11:00 AM
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